Chains and heterogens:
PDB Chain Sequences:
>1xk7A (A:) gshmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpn ypqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpk lviahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltat taalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcg lykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveekld awlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnim pkfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved
>1xk7A (A:) shmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpny pqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpkl viahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltatt aalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcgl ykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveeklda wlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnimp kfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved
>1xk7B (B:) gshmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpn ypqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpk lviahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltat taalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcg lykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveekld awlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnim pkfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved
>1xk7B (B:) shmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpny pqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpkl viahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltatt aalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcgl ykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveeklda wlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnimp kfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved
>1xk7C (C:) gshmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpn ypqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpk lviahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltat taalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcg lykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveekld awlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnim pkfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved
>1xk7C (C:) shmdhlpmpkfgplaglrvvfsgieiagpfagqmfaewgaeviwienvawadtirvqpny pqlsrrnlhalslnifkdegreaflklmettdifieaskgpafarrgitdevlwqhnpkl viahlsgfgqygteeytnlpayntiaqafsgyliqngdvdqpmpafpytadyfsgltatt aalaalhkvretgkgesidiamyevmlrmgqyfmmdyfnggemcprmskgkdpyyagcgl ykcadgyivmelvgitqieecfkdiglahllgtpeipegtqlihriecpygplveeklda wlathtiaevkerfaelniacakvltvpelesnpqyvaresitqwqtmdgrtckgpnimp kfknnpgqiwrgmpshgmdtaailknigysendiqelvskglakved